java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c372c2b [2018-10-02 12:07:41,774 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-02 12:07:41,776 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-02 12:07:41,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-02 12:07:41,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-02 12:07:41,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-02 12:07:41,791 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-02 12:07:41,793 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-02 12:07:41,795 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-02 12:07:41,795 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-02 12:07:41,796 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-02 12:07:41,797 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-02 12:07:41,798 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-02 12:07:41,799 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-02 12:07:41,800 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-02 12:07:41,801 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-02 12:07:41,802 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-02 12:07:41,803 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-02 12:07:41,806 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-02 12:07:41,807 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-02 12:07:41,808 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-02 12:07:41,810 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-02 12:07:41,815 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-02 12:07:41,835 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-10-02 12:07:41,865 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-02 12:07:41,865 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-02 12:07:41,866 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-02 12:07:41,866 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-02 12:07:41,867 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-02 12:07:41,869 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-02 12:07:41,869 INFO L133 SettingsManager]: * Use SBE=true [2018-10-02 12:07:41,869 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-02 12:07:41,870 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-02 12:07:41,870 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-02 12:07:41,870 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-02 12:07:41,870 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-02 12:07:41,871 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-02 12:07:41,871 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-02 12:07:41,872 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-02 12:07:41,872 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-02 12:07:41,872 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-02 12:07:41,872 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-02 12:07:41,874 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-02 12:07:41,874 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-02 12:07:41,874 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-02 12:07:41,874 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-02 12:07:41,875 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-02 12:07:41,875 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-02 12:07:41,875 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-02 12:07:41,875 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-02 12:07:41,875 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-02 12:07:41,876 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-02 12:07:41,876 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-02 12:07:41,876 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-02 12:07:41,876 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-02 12:07:41,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-02 12:07:41,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-02 12:07:41,965 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-02 12:07:41,966 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-02 12:07:41,967 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-02 12:07:41,968 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl [2018-10-02 12:07:41,968 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl' [2018-10-02 12:07:42,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-02 12:07:42,023 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-02 12:07:42,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-02 12:07:42,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-02 12:07:42,024 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-02 12:07:42,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/1) ... [2018-10-02 12:07:42,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/1) ... [2018-10-02 12:07:42,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-02 12:07:42,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-02 12:07:42,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-02 12:07:42,066 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-02 12:07:42,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/1) ... [2018-10-02 12:07:42,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/1) ... [2018-10-02 12:07:42,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/1) ... [2018-10-02 12:07:42,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/1) ... [2018-10-02 12:07:42,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/1) ... [2018-10-02 12:07:42,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/1) ... [2018-10-02 12:07:42,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/1) ... [2018-10-02 12:07:42,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-02 12:07:42,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-02 12:07:42,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-02 12:07:42,094 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-02 12:07:42,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-02 12:07:42,155 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-02 12:07:42,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-02 12:07:42,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-02 12:07:42,415 INFO L340 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-02 12:07:42,416 INFO L202 PluginConnector]: Adding new model gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 12:07:42 BoogieIcfgContainer [2018-10-02 12:07:42,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-02 12:07:42,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-02 12:07:42,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-02 12:07:42,422 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-02 12:07:42,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.10 12:07:42" (1/2) ... [2018-10-02 12:07:42,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dba21f0 and model type gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 12:07:42, skipping insertion in model container [2018-10-02 12:07:42,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 12:07:42" (2/2) ... [2018-10-02 12:07:42,425 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl [2018-10-02 12:07:42,437 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-02 12:07:42,448 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-02 12:07:42,509 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-02 12:07:42,510 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-02 12:07:42,511 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-02 12:07:42,511 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-02 12:07:42,511 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-02 12:07:42,511 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-02 12:07:42,512 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-02 12:07:42,512 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-02 12:07:42,512 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-02 12:07:42,530 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-10-02 12:07:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-02 12:07:42,539 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 12:07:42,540 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-10-02 12:07:42,541 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 12:07:42,553 INFO L103 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-02 12:07:42,554 INFO L82 PathProgramCache]: Analyzing trace with hash 30017, now seen corresponding path program 1 times [2018-10-02 12:07:42,558 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 12:07:42,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 12:07:42,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 12:07:42,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 12:07:42,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 12:07:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 12:07:42,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 12:07:42,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-02 12:07:42,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-02 12:07:42,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-02 12:07:42,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-02 12:07:42,771 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-02 12:07:42,773 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-10-02 12:07:42,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 12:07:42,951 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-10-02 12:07:42,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-02 12:07:42,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-10-02 12:07:42,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 12:07:42,966 INFO L225 Difference]: With dead ends: 9 [2018-10-02 12:07:42,966 INFO L226 Difference]: Without dead ends: 5 [2018-10-02 12:07:42,969 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time 0.0s impTime [2018-10-02 12:07:42,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-10-02 12:07:43,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-10-02 12:07:43,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-02 12:07:43,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-10-02 12:07:43,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-10-02 12:07:43,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 12:07:43,007 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-10-02 12:07:43,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-02 12:07:43,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-10-02 12:07:43,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-02 12:07:43,008 INFO L367 BasicCegarLoop]: Found error trace [2018-10-02 12:07:43,008 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-02 12:07:43,008 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-02 12:07:43,009 INFO L103 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-02 12:07:43,009 INFO L82 PathProgramCache]: Analyzing trace with hash 928552, now seen corresponding path program 1 times [2018-10-02 12:07:43,009 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-02 12:07:43,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-02 12:07:43,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 12:07:43,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 12:07:43,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-02 12:07:43,019 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-02 12:07:43,019 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-02 12:07:43,019 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-02 12:07:43,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-02 12:07:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-02 12:07:43,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-02 12:07:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-02 12:07:43,172 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-02 12:07:43,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-10-02 12:07:43,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-02 12:07:43,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-02 12:07:43,174 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-02 12:07:43,175 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-10-02 12:07:43,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-02 12:07:43,295 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2018-10-02 12:07:43,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-02 12:07:43,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-10-02 12:07:43,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-02 12:07:43,301 INFO L225 Difference]: With dead ends: 5 [2018-10-02 12:07:43,301 INFO L226 Difference]: Without dead ends: 0 [2018-10-02 12:07:43,302 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time 0.0s impTime [2018-10-02 12:07:43,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-02 12:07:43,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-02 12:07:43,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-02 12:07:43,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-02 12:07:43,305 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2018-10-02 12:07:43,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-02 12:07:43,306 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-02 12:07:43,306 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-02 12:07:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-02 12:07:43,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-02 12:07:43,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-02 12:07:43,438 INFO L421 ceAbstractionStarter]: At program point L65(lines 65 66) the Hoare annotation is: false [2018-10-02 12:07:43,439 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 68) no Hoare annotation was computed. [2018-10-02 12:07:43,439 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 68) no Hoare annotation was computed. [2018-10-02 12:07:43,439 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 68) no Hoare annotation was computed. [2018-10-02 12:07:43,439 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 67) no Hoare annotation was computed. [2018-10-02 12:07:43,439 INFO L421 ceAbstractionStarter]: At program point L51(lines 40 52) the Hoare annotation is: (or (= ULTIMATE.start_main_~y~7 ULTIMATE.start_gcd_test_~b) (and (<= ULTIMATE.start_gcd_test_~b ULTIMATE.start_main_~y~7) (<= ULTIMATE.start_gcd_test_~a ULTIMATE.start_main_~y~7))) [2018-10-02 12:07:43,449 INFO L202 PluginConnector]: Adding new model gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 12:07:43 BoogieIcfgContainer [2018-10-02 12:07:43,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-02 12:07:43,451 INFO L168 Benchmark]: Toolchain (without parser) took 1430.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-10-02 12:07:43,453 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 12:07:43,454 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 12:07:43,455 INFO L168 Benchmark]: Boogie Preprocessor took 27.06 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-02 12:07:43,456 INFO L168 Benchmark]: RCFGBuilder took 323.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-02 12:07:43,457 INFO L168 Benchmark]: TraceAbstraction took 1032.08 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-10-02 12:07:43,462 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.06 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 323.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1032.08 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: main_~y~7 == gcd_test_~b || (gcd_test_~b <= main_~y~7 && gcd_test_~a <= main_~y~7) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 6 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 6 NumberOfNonLiveVariables, 46 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-02_12-07-43-476.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/gcd_2.i_4.bplTransformedIcfg_BEv2_6.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-02_12-07-43-476.csv Received shutdown request...